Electronic fee collection - Information exchange between service provision and toll charging (ISO 12855:2022)

This document specifies:
—    the interfaces between electronic fee collection (EFC) back-office systems for vehicle-related transport services, e.g. road user charging, parking and access control;
—    an exchange of information between the back end system of the two roles of service provision and toll charging, e.g.:
—    charging-related data (toll declarations, billing details),
—    administrative data, and
—    confirmation data;
—    transfer mechanisms and supporting functions;
—    information objects, data syntax and semantics.
This document is applicable for any vehicle-related toll service and any technology used for charging.
The data types and associated coding related to the data elements described in Clause 6 are defined in Annex A, using the abstract syntax notation one (ASN.1) according to ISO/IEC 8824‑1.
This document specifies basic protocol mechanisms over which implementations can specify and perform complex transfers (transactions).
This document does not specify, amongst others:
—    any communication between toll charger (TC) or toll service provider (TSP) with any other involved party;
—    any communication between elements of the TC and the TSP that is not part of the back-office communication;
—    interfaces for EFC systems for public transport;
—    any complex transfers (transactions), i.e. sequences of inter-related application data units (ADUs) that can possibly involve several application protocol data unit (APDU) exchanges;
—    processes regarding payments and exchanges of fiscal, commercial or legal accounting documents; and
—    definitions of service communication channels, protocols and service primitives to transfer the APDUs.

Elektronische Gebührenerhebung - Informationsaustausch zwischen Dienstleistern und Gebühreneinzugsunternehmen (ISO 12855:2022)

Perception du télépéage - Échange d'informations entre la prestation de service et la perception du péage (ISO 12855:2022)

Elektronsko pobiranje pristojbin - Izmenjava informacij med ponudnikom in operaterjem cestninjenja (ISO 12855:2022)

General Information

Status
Published
Public Enquiry End Date
07-Jan-2021
Publication Date
19-Jun-2022
Technical Committee
Current Stage
6060 - National Implementation/Publication (Adopted Project)
Start Date
12-May-2022
Due Date
17-Jul-2022
Completion Date
20-Jun-2022

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SLOVENSKI STANDARD
SIST EN ISO 12855:2022
01-julij-2022
Nadomešča:
SIST EN ISO 12855:2016
Elektronsko pobiranje pristojbin - Izmenjava informacij med ponudnikom in
operaterjem cestninjenja (ISO 12855:2022)

Electronic fee collection - Information exchange between service provision and toll

charging (ISO 12855:2022)

Elektronische Gebührenerhebung - Informationsaustausch zwischen Dienstleistern und

Gebühreneinzugsunternehmen (ISO 12855:2022)

Perception du télépéage - Échange d'informations entre la prestation de service et la

perception du péage (ISO 12855:2022)
Ta slovenski standard je istoveten z: EN ISO 12855:2022
ICS:
03.220.20 Cestni transport Road transport
35.240.60 Uporabniške rešitve IT v IT applications in transport
prometu
SIST EN ISO 12855:2022 en,fr,de

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

---------------------- Page: 1 ----------------------
SIST EN ISO 12855:2022
---------------------- Page: 2 ----------------------
SIST EN ISO 12855:2022
EN ISO 12855
EUROPEAN STANDARD
NORME EUROPÉENNE
May 2022
EUROPÄISCHE NORM
ICS 03.220.20; 35.240.60 Supersedes EN ISO 12855:2015
English Version
Electronic fee collection - Information exchange between
service provision and toll charging (ISO 12855:2022)

Perception du télépéage - Échange d'informations Elektronische Gebührenerhebung -

entre la prestation de service et la perception du péage Informationsaustausch zwischen Dienstleistern und

(ISO 12855:2022) Gebühreneinzugsunternehmen (ISO 12855:2022)
This European Standard was approved by CEN on 22 February 2022.

CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this

European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references

concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN

member.

This European Standard exists in three official versions (English, French, German). A version in any other language made by

translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management

Centre has the same status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,

Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,

Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and

United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels

© 2022 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 12855:2022 E

worldwide for CEN national Members.
---------------------- Page: 3 ----------------------
SIST EN ISO 12855:2022
EN ISO 12855:2022 (E)
Contents Page

European foreword ....................................................................................................................................................... 3

---------------------- Page: 4 ----------------------
SIST EN ISO 12855:2022
EN ISO 12855:2022 (E)
European foreword

This document (EN ISO 12855:2022) has been prepared by Technical Committee ISO/TC 204

"Intelligent transport systems" in collaboration with Technical Committee CEN/TC 278 “Intelligent

transport systems” the secretariat of which is held by NEN.

This European Standard shall be given the status of a national standard, either by publication of an

identical text or by endorsement, at the latest by November 2022, and conflicting national standards

shall be withdrawn at the latest by November 2022.

Attention is drawn to the possibility that some of the elements of this document may be the subject of

patent rights. CEN shall not be held responsible for identifying any or all such patent rights.

This document supersedes EN ISO 12855:2015.

This document has been prepared under a Standardization Request given to CEN by the European

Commission and the European Free Trade Association.

Any feedback and questions on this document should be directed to the users’ national standards

body/national committee. A complete listing of these bodies can be found on the CEN website.

According to the CEN-CENELEC Internal Regulations, the national standards organizations of the

following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria,

Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland,

Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Republic of

North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the

United Kingdom.
Endorsement notice

The text of ISO 12855:2022 has been approved by CEN as EN ISO 12855:2022 without any modification.

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SIST EN ISO 12855:2022
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SIST EN ISO 12855:2022
INTERNATIONAL ISO
STANDARD 12855
Third edition
2022-04
Electronic fee collection —
Information exchange between service
provision and toll charging
Perception du télépéage — Échange d'informations entre la
prestation de service et la perception du péage
Reference number
ISO 12855:2022(E)
© ISO 2022
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SIST EN ISO 12855:2022
ISO 12855:2022(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2022

All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may

be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on

the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below

or ISO’s member body in the country of the requester.
ISO copyright office
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: +41 22 749 01 11
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
© ISO 2022 – All rights reserved
---------------------- Page: 8 ----------------------
SIST EN ISO 12855:2022
ISO 12855:2022(E)
Contents Page

Foreword ..........................................................................................................................................................................................................................................v

Introduction .............................................................................................................................................................................................................................. vi

1 Scope ................................................................................................................................................................................................................................. 1

2 Normative references ..................................................................................................................................................................................... 1

3 Terms and definitions .................................................................................................................................................................................... 2

4 Symbols and abbreviated terms..........................................................................................................................................................3

5 Architectural concepts and information exchanges ..................................................................................................... 4

5.1 Main roles in the toll charging environment ............................................................................................................... 4

5.2 Information exchange between toll charging and provision ........................................................................ 5

5.2.1 General ........................................................................................................................................................................................ 5

5.2.2 Basic protocol mechanisms ...................................................................................................................................... 7

5.2.3 Exchange trust objects functionality ............................................................................................................... 8

5.2.4 Originating and providing EFC context data functionality .......................................................... 8

5.2.5 Provide contract issuer information functionality ............................................................................. 9

5.2.6 Manage exception list functionality .................................................................................................................. 9

5.2.7 Report toll declarations functionality .......................................................................................................... 10

5.2.8 Report billing details functionality ................................................................................................................ 10

5.2.9 Payment settlement functionality ................................................................................................................... 11

5.2.10 Exchange enforcement data functionality ...............................................................................................12

5.2.11 Process user complaints functionality ........................................................................................................ 13

5.2.12 Exchange quality assurance parameters functionality ................................................................13

5.2.13 Provide media settlement data functionality ................................... ..................................................... 14

6 Computational specification ................................................................................................................................................................14

6.1 Overview ................................................................................................................................................................................................... 14

6.2 Application protocol data units ............................................................................................................................................ 17

6.2.1 General ..................................................................................................................................................................................... 17

6.2.2 Application protocol control information (APCI) .............................................................................. 19

6.2.3 Application data units ................................................................................................................................................20

6.2.4 ADU identification ..........................................................................................................................................................20

6.2.5 ADU action code ............................................................................................................................................................... 21

6.2.6 User identification .......................................................................................................................................................... 21

6.3 RequestAdu data structure ........................................................................................................................................... ...........22

6.4 AckAdu data structure .................................................................................................................................................................25

6.5 StatusAdu data structure .......................................................................................................................................................... 32

6.6 TrustObjectAdu data structure ............................................................................................................................................ 32

6.7 EfcContextDataAdu data structure .................................................................................................................................. 39

6.7.1 General .....................................................................................................................................................................................39

6.7.2 GeneralContextData type ........................................................................................................................................40

6.7.3 MeshedContextData type ........................................................................................................................................ 57

6.7.4 Common data structures .........................................................................................................................................66

6.8 ContractIssuerListAdu data structure ...........................................................................................................................88

6.9 ExceptionListAdu data structure .......................................................................................................................................90

6.10 ReportAbnormalObeAdu data structure .....................................................................................................................94

6.11 TollDeclarationAdu data structure ................................................................................................................................... 95

6.12 BillingDetailsAdu data structure........................................................................................................................................99

6.12.1 General .....................................................................................................................................................................................99

6.12.2 UsageList data type....................................................................................................................................................101

6.12.3 AssociatedEventData data type ...................................................................................................................... 111

6.13 PaymentClaimAdu data structure .................................................................................................................................. 117

6.14 PaymentAnnouncement Adu data structure ......... ................................................................................................ 119

6.15 ProvideUserDetailsAdu data structure ......................................................................................................................121

6.16 ReportCccEventAdu data structure ..............................................................................................................................125

iii
© ISO 2022 – All rights reserved
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SIST EN ISO 12855:2022
ISO 12855:2022(E)

6.17 ProvideUserIdListAdu data structure .........................................................................................................................126

6.18 Report QA data structure........................................................................................................................................................127

6.19 User complaint data structure ...........................................................................................................................................128

6.20 User complaint response data structure...................................................................................................................129

6.21 Media settlement data structure .....................................................................................................................................131

7 Transfer mechanisms and supporting functions ...................................................................................................... 132

7.1 Transfer mechanisms .................................................................................................................................................................132

7.2 Secure communication channel ........................................................................................................................................133

7.3 Supporting functions ..................................................................................................................................................................133

7.3.1 Communication services .......................................................................................................................................133

7.3.2 Authenticators ................................................................................................................................................................133

7.3.3 Signature and hash algorithms .......................................................................................................................135

7.3.4 Keys encryption ............................................................................................................................................................135

Annex A (normative) Data type specifications .................................................................................................................................. 136

Annex B (informative) Example enforcement process applyingstandardized APDU

exchanges ............................................................................................................................................................................................................. 137

Annex C (informative) Example of data flows in a toll domain .........................................................................................142

Annex D (informative) Example of rounding differences .......................................................................................................145

Annex E (informative) Example of fee calculation using EFC context data ......................................................... 149

Bibliography ......................................................................................................................................................................................................................... 153

© ISO 2022 – All rights reserved
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SIST EN ISO 12855:2022
ISO 12855:2022(E)
Foreword

ISO (the International Organization for Standardization) is a worldwide federation of national standards

bodies (ISO member bodies). The work of preparing International Standards is normally carried out

through ISO technical committees. Each member body interested in a subject for which a technical

committee has been established has the right to be represented on that committee. International

organizations, governmental and non-governmental, in liaison with ISO, also take part in the work.

ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of

electrotechnical standardization.

The procedures used to develop this document and those intended for its further maintenance are

described in the ISO/IEC Directives, Part 1. In particular, the different approval criteria needed for the

different types of ISO documents should be noted. This document was drafted in accordance with the

editorial rules of the ISO/IEC Directives, Part 2 (see www.iso.org/directives).

Attention is drawn to the possibility that some of the elements of this document may be the subject of

patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of

any patent rights identified during the development of the document will be in the Introduction and/or

on the ISO list of patent declarations received (see www.iso.org/patents).

Any trade name used in this document is information given for the convenience of users and does not

constitute an endorsement.

For an explanation of the voluntary nature of standards, the meaning of ISO specific terms and

expressions related to conformity assessment, as well as information about ISO's adherence to

the World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT), see

www.iso.org/iso/foreword.html.

This document was prepared by Technical Committee ISO/TC 204, Intelligent transport systems, in

collaboration with the European Committee for Standardization (CEN) Technical Committee CEN/TC

278, Intelligent transport systems, in accordance with the Agreement on technical cooperation between

ISO and CEN (Vienna Agreement).

This third edition cancels and replaces the second edition (ISO 12855:2015), which has been technically

revised.
The main changes are as follows:
— addition of new application data units (ADUs);
— alignment of the ASN.1 data definitions with the current edition of ISO 14906;

— removal of all dependencies on the ISO 17575 series ASN.1 data types and creation of corresponding

definitions;

— re-classification of the electronic fee collection (EFC) context types by tolling and geographical

characteristics and removal of the previous distinction based on tolling technology;

— splitting of the ASN.1 module into two modules: one containing ISO 12855-specific definitions, and

another containing data-type definitions that are common to other standards in the EFC domain.

This common data types module has then been moved to ISO/TS 17573-3;
— clarification of the semantics of all parameters in ADUs;

— alignment of the structure of all major clauses in a consistent manner to improve readability.

Any feedback or questions on this document should be directed to the user’s national standards body. A

complete listing of these bodies can be found at www.iso.org/members.html.
© ISO 2022 – All rights reserved
---------------------- Page: 11 ----------------------
SIST EN ISO 12855:2022
ISO 12855:2022(E)
Introduction

The widespread use of road tolling requires provisions for users of vehicles that circulate through many

different toll domains. Users should be offered a single contract for driving a vehicle through various

toll domains. Where those vehicles require on-board equipment (OBE) this should be interoperable

with the toll systems in the various toll domains. In Europe, for example, this need has been officially

[8]

recognized and legislation on interoperability has already been adopted (see Directive 2019/520 ,

[10]

related Commission delegated regulation 2020/2003 and Commission implementing regulation

[9]

2020/204 ). There is both a commercial and economic justification regarding the OBE and the toll

systems for International Standards supporting interoperability.

The system architecture defined in ISO 17573-1 is the basis for all International Standards that relate

to tolling systems in the toll domain. With respect to ISO 17573-1, this document:

— adopts its definitions of terms and concepts and basic system functionalities and structure,

— uses its terminology, and
— specifies the interfaces identified therein.
ISO 17573-1 uses ISO/IEC 10746-3 for the description of the architecture.

Figure 1 shows the scope of the group of International Standards related to electronic fee collection

(EFC) based upon the ISO 17573-1 system architecture.
© ISO 2022 – All rights reserved
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SIST EN ISO 12855:2022
ISO 12855:2022(E)
Key
DSRCdedicated short-range communication
QA quality assurance
RSE roadside equipment
Figure 1 — Scope of EFC-related International Standards

A given transport service for a given vehicle is fully identified by one or several toll declarations made

available to the toll charger (TC). It is necessary to make toll declarations available according to the

rules of the toll regime of the toll domain.

The amount due for a given transport service used by a vehicle liable to toll is finalized by the TC with

the use of toll declarations (as described above) and calculations are made according to the rules of the

toll regime (formula, tariff tables, specific situations rules, traffic conditions, etc.). This means that the

TC has the authority to decide on the amount due, even if it decides to assign the toll service provider

(TSP) the task of calculating the amount due.

The information above, associated with a given transport service, is referred to as "billing details"; for a

given transport service, the billing details refer to one or several toll declarations.

Depending on the toll regime, billing details are computed by means of the information collected by the

TC and/or the relevant TSP; they are finalized by the TC or by the TSP if the TC has assigned this task to

the TSP.

The TC settles the payment claims (or toll payment claims) and makes them available to each TSP, or

requires the TSP to send payment announcements, according to the bilateral agreements it has with

each TSP, referring to billing details. These payment claims include an amount due, taking into account

any specific commercial conditions applicable to a vehicle, a fleet of vehicles or a given TSP.

vii
© ISO 2022 – All rights reserved
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SIST EN ISO 12855:2022
ISO 12855:2022(E)

This document defines a set of interactions in support of technical interoperability between back-office

systems of TCs and TSPs. The EFC service and the EFC system model on which this document is based

are defined in ISO 17573-1.

This document does not provide a full solution for interoperability and it does not define other parts

of the EFC system, other services, other technologies and non-technical elements of interoperability. It

is defined as a toolbox International Standard of application protocol data units (APDUs), which can be

used for the assigned purpose. The detailed definitions of mandatory and optional elements in a real

implementation are defined elsewhere. It does not define all communication sequences, communication

stacks and timings.

The development of a common European Electronic Toll Service (EETS), as a part of the already cited

European EFC Directive and related Regulation and Implementing acts, also calls for the definition

of an interoperable EFC service. It should be noted that CEN/TS 16986 (to be revised and converted

into a European Standard) specifies interoperable application profiles (IAP), applicable based on

this document. These profiles define a specific coherent set of transactions, triggers, conditions,

data elements, transfer mechanisms and supporting functions for an interoperable exchange of data

between the back end system of TCs and TSPs. CEN/TS 16986 is consistent with and is intended to

provide support for the technical specification of the EETS.

This document identifies and specifies the set of APDUs exchanged between two actors in the roles of

TSP and TC as defined in ISO 17573-1. To specify these interfaces, this document uses the enterprise

description of the toll environment, and the interactions defined between the named classes of roles,

as defined in ISO 17573-1. This supports a complete specification of the data that is transferred

between those identified entities. In addition, a number of computational interfaces are identified and

interactions in terms of sequences of application protocol data units are defined.

viii
© ISO 2022 – All rights reserved
---------------------- Page: 14 ----------------------
SIST EN ISO 12855:2022
INTERNATIONAL STANDARD ISO 12855:2022(E)
Electronic fee collection — Information exchange between
service provision and toll charging
1 Scope
This document specifies:

— the interfaces between electronic fee collection (EFC) back-office systems for vehicle-related

transport services, e.g. road user charging, parking and access control;

— an exchange of information between the back end system of the two roles of service provision and

toll charging, e.g.:
— charging-related data (toll declarations, billing details),
— administrative data, and
— confirmation data;
— transfer mechanisms and supporting functions;
— information objects, data syntax and semantics.

This document is applicable for any vehicle-related toll service and any technology used for charging.

The data types and associated coding related to the data elements described in Clause 6 are defined in

Annex A, using the abstract syntax notation one (ASN.1) according to ISO/IEC 8824-1.

This document specifies basic protocol mechanisms over which implementations can specify and

perform complex transfers (transactions).
This document does not specify, amongst others:

— any communication between toll charger (TC) or toll service provider (TSP) with any other involved

party;

— any communication between elements of the TC and the TSP that is not part of the back-office

communication;
— interfaces for EFC systems for public transport;

— any complex transfers (transactions), i.e. sequences of inter-related application data units (ADUs)

that can
...

SLOVENSKI STANDARD
oSIST prEN ISO 12855:2021
01-januar-2021
Elektronsko pobiranje pristojbin - Izmenjava informacij med ponudnikom in
operaterjem cestninjenja (ISO/DIS 12855:2020)

Electronic fee collection - Information exchange between service provision and toll

charging (ISO/DIS 12855:2020)

Elektronische Gebührenerhebung - Informationsaustausch zwischen Dienstleistern und

Gebühreneinzugsunternehmen (ISO/DIS 12855:2020)

Perception du télépéage - Échange d'informations entre la prestation de service et la

perception du péage (ISO/DIS 12855:2020)
Ta slovenski standard je istoveten z: prEN ISO 12855
ICS:
03.220.20 Cestni transport Road transport
35.240.60 Uporabniške rešitve IT v IT applications in transport
prometu
oSIST prEN ISO 12855:2021 en,fr,de

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

---------------------- Page: 1 ----------------------
oSIST prEN ISO 12855:2021
---------------------- Page: 2 ----------------------
oSIST prEN ISO 12855:2021
DRAFT INTERNATIONAL STANDARD
ISO/DIS 12855
ISO/TC 204 Secretariat: ANSI
Voting begins on: Voting terminates on:
2020-10-21 2021-01-13
Electronic fee collection — Information exchange between
service provision and toll charging

Perception du télépéage — Échange d'informations entre la prestation de service et la perception du péage

ICS: 03.220.20; 35.240.60
THIS DOCUMENT IS A DRAFT CIRCULATED
This document is circulated as received from the committee secretariat.
FOR COMMENT AND APPROVAL. IT IS
THEREFORE SUBJECT TO CHANGE AND MAY
NOT BE REFERRED TO AS AN INTERNATIONAL
STANDARD UNTIL PUBLISHED AS SUCH.
IN ADDITION TO THEIR EVALUATION AS
ISO/CEN PARALLEL PROCESSING
BEING ACCEPTABLE FOR INDUSTRIAL,
TECHNOLOGICAL, COMMERCIAL AND
USER PURPOSES, DRAFT INTERNATIONAL
STANDARDS MAY ON OCCASION HAVE TO
BE CONSIDERED IN THE LIGHT OF THEIR
POTENTIAL TO BECOME STANDARDS TO
WHICH REFERENCE MAY BE MADE IN
Reference number
NATIONAL REGULATIONS.
ISO/DIS 12855:2020(E)
RECIPIENTS OF THIS DRAFT ARE INVITED
TO SUBMIT, WITH THEIR COMMENTS,
NOTIFICATION OF ANY RELEVANT PATENT
RIGHTS OF WHICH THEY ARE AWARE AND TO
PROVIDE SUPPORTING DOCUMENTATION. ISO 2020
---------------------- Page: 3 ----------------------
oSIST prEN ISO 12855:2021
ISO 12855:2021(E)
ISO/DIS 12855:2020(E)

6.8 CONTRACTISSUERLISTADU DATA STRUCTURE ...............................................................................................................97

6.9 EXCEPTIONLISTADU DATA STRUCTURE ........................................................................................................................99

6.10 REPORTABNORMALOBEADU DATA STRUCTURE ..........................................................................................................101

6.11 TOLL DECLARATIONADU DATA STRUCTURE ................................................................................................................102

6.12 BILLINGDETAILSADU DATA STRUCTURE .....................................................................................................................110

6.12.1 UsageList data type ................................................................................................................................112

6.12.2 AssociatedEventData data type..............................................................................................................121

6.13 PAYMENTCLAIMADU DATA STRUCTURE.....................................................................................................................127

6.14 PAYMENTANNOUNCEMENT ADU DATA STRUCTURE .....................................................................................................129

6.15 PROVIDEUSERDETAILSADU DATA STRUCTURE ............................................................................................................131

6.16 REPORTCCCEVENTADU DATA STRUCTURE.................................................................................................................135

6.17 PROVIDEUSERIDLISTADU DATA STRUCTURE...............................................................................................................136

6.18 REPORT QA DATA STRUCTURE.................................................................................................................................137

6.19 USER COMPLAINT DATA STRUCTURE .........................................................................................................................138

6.20 USER COMPLAINT RESPONSE DATA STRUCTURE ...........................................................................................................139

6.21 MEDIA EXCEPTION LIST DATA STRUCTURE ..................................................................................................................141

6.22 MEDIA SETTLEMENT DATA STRUCTURE......................................................................................................................142

7 TRANSFER MECHANISMS AND SUPPORTING FUNCTIONS ................................................................................. 144

7.1 TRANSFER MECHANISMS ........................................................................................................................................144

7.2 SECURE COMMUNICATION CHANNEL.........................................................................................................................144

7.3 SUPPORTING FUNCTIONS........................................................................................................................................145

7.3.1 Communication services..............................................................................................................................145

7.3.2 Authenticators.............................................................................................................................................145

7.3.3 Signature and hash algorithms ...................................................................................................................146

7.3.4 Keys encryption ...........................................................................................................................................147

ANNEX A (NORMATIVE) DATA TYPE SPECIFICATIONS ............................................................................................... 148

ANNEX B (INFORMATIVE) EXAMPLE ENFORCEMENT PROCESS APPLYING STANDARDIZED APDU EXCHANGES......... 149

ANNEX C (INFORMATIVE) EXAMPLE OF DATA FLOWS IN A TOLL DOMAIN ............................................................... 154

ANNEX D (INFORMATIVE) EXAMPLE OF ROUNDING DIFFERENCES ........................................................................... 158

BIBLIOGRAPHY .......................................................................................................................................................... 162

COPYRIGHT PROTECTED DOCUMENT
© ISO 2020

All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may

be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting

on the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address

below or ISO’s member body in the country of the requester.
ISO copyright office
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: +41 22 749 01 11
Fax: +41 22 749 09 47
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
ii © ISO 2020 – All rights reserved iii
@ISO 2021 – All rights reserved
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oSIST prEN ISO 12855:2021
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oSIST prEN ISO 12855:2021
ISO/DIS 12855:2020(E)
Contents Page

FOREWORD ................................................................................................................................................................... 4

INTRODUCTION ............................................................................................................................................................. 5

1 SCOPE ................................................................................................................................................................... 1

2 NORMATIVE REFERENCES ..................................................................................................................................... 2

3 TERMS AND DEFINITIONS ..................................................................................................................................... 3

4 SYMBOLS AND ABBREVIATED TERMS ................................................................................................................... 3

5 ARCHITECTURAL CONCEPTS AND INFORMATION EXCHANGES ............................................................................. 5

5.1 MAIN ROLES IN THE TOLL CHARGING ENVIRONMENT ........................................................................................................ 5

5.2 INFORMATION EXCHANGE BETWEEN TOLL CHARGING AND PROVISION ................................................................................. 5

5.2.1 General ........................................................................................................................................................... 5

5.2.2 Basic interaction protocol ............................................................................................................................... 7

5.2.3 Basic protocol mechanisms ............................................................................................................................. 7

5.2.4 Exchange trust objects functionality ............................................................................................................... 8

5.2.5 Provide EFC context data ................................................................................................................................ 8

5.2.6 Provide contract issuer information functionality .......................................................................................... 9

5.2.7 Manage exception list functionality................................................................................................................ 9

5.2.8 Report toll declarations functionality ........................................................................................................... 10

5.2.9 Report billing details functionality ................................................................................................................ 10

5.2.10 Payment settlement functionality ............................................................................................................ 11

5.2.11 Exchange enforcement data functionality................................................................................................ 12

5.2.12 Process user complaints functionality ...................................................................................................... 14

5.2.13 Exchange quality assurance parameters functionality ............................................................................. 14

5.2.14 Provide media exception list functionality ................................................................................................ 15

5.2.15 Provide media settlement data functionality ........................................................................................... 15

6 COMPUTATIONAL SPECIFICATION ...................................................................................................................... 15

6.1 OVERVIEW ............................................................................................................................................................ 15

6.2 APPLICATION PROTOCOL DATA UNITS ........................................................................................................................ 19

6.2.1 General ......................................................................................................................................................... 19

6.2.2 Application Protocol Control Information ..................................................................................................... 20

6.2.3 Application Data Units .................................................................................................................................. 21

6.2.4 ADU identification ......................................................................................................................................... 22

6.2.5 ADU action code ........................................................................................................................................... 23

6.2.6 User identification ......................................................................................................................................... 23

6.3 REQUESTADU DATA STRUCTURE ................................................................................................................................ 24

6.4 ACKADU DATA STRUCTURE ....................................................................................................................................... 28

6.5 STATUSADU DATA STRUCTURE .................................................................................................................................. 36

6.6 TRUSTOBJECTADU DATA STRUCTURE ......................................................................................................................... 36

6.7 EFCCONTEXTDATAADU DATA STRUCTURE ................................................................................................................... 43

6.7.1 General ......................................................................................................................................................... 43

6.7.2 The gnss context ........................................................................................................................................... 44

6.7.3 The dsrc context ............................................................................................................................................ 44

6.7.4 The dsrc closed context ................................................................................................................................. 45

6.7.5 The EntityOverview data structure ............................................................................................................... 54

6.7.6 The EfcContextData data structure .............................................................................................................. 57

6.7.7 FeeModifier data type .................................................................................................................................. 95

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6.8 CONTRACTISSUERLISTADU DATA STRUCTURE ............................................................................................................... 97

6.9 EXCEPTIONLISTADU DATA STRUCTURE ........................................................................................................................ 99

6.10 REPORTABNORMALOBEADU DATA STRUCTURE .......................................................................................................... 101

6.11 TOLL DECLARATIONADU DATA STRUCTURE ................................................................................................................ 102

6.12 BILLINGDETAILSADU DATA STRUCTURE ..................................................................................................................... 110

6.12.1 UsageList data type ................................................................................................................................ 112

6.12.2 AssociatedEventData data type .............................................................................................................. 121

6.13 PAYMENTCLAIMADU DATA STRUCTURE ..................................................................................................................... 127

6.14 PAYMENTANNOUNCEMENT ADU DATA STRUCTURE ..................................................................................................... 129

6.15 PROVIDEUSERDETAILSADU DATA STRUCTURE ............................................................................................................ 131

6.16 REPORTCCCEVENTADU DATA STRUCTURE ................................................................................................................. 135

6.17 PROVIDEUSERIDLISTADU DATA STRUCTURE ............................................................................................................... 136

6.18 REPORT QA DATA STRUCTURE ................................................................................................................................. 137

6.19 USER COMPLAINT DATA STRUCTURE ......................................................................................................................... 138

6.20 USER COMPLAINT RESPONSE DATA STRUCTURE ........................................................................................................... 139

6.21 MEDIA EXCEPTION LIST DATA STRUCTURE .................................................................................................................. 141

6.22 MEDIA SETTLEMENT DATA STRUCTURE ...................................................................................................................... 142

7 TRANSFER MECHANISMS AND SUPPORTING FUNCTIONS ................................................................................. 144

7.1 TRANSFER MECHANISMS ........................................................................................................................................ 144

7.2 SECURE COMMUNICATION CHANNEL......................................................................................................................... 144

7.3 SUPPORTING FUNCTIONS ........................................................................................................................................ 145

7.3.1 Communication services .............................................................................................................................. 145

7.3.2 Authenticators ............................................................................................................................................. 145

7.3.3 Signature and hash algorithms ................................................................................................................... 146

7.3.4 Keys encryption ........................................................................................................................................... 147

ANNEX A (NORMATIVE) DATA TYPE SPECIFICATIONS ............................................................................................... 148

ANNEX B (INFORMATIVE) EXAMPLE ENFORCEMENT PROCESS APPLYING STANDARDIZED APDU EXCHANGES ......... 149

ANNEX C (INFORMATIVE) EXAMPLE OF DATA FLOWS IN A TOLL DOMAIN ............................................................... 154

ANNEX D (INFORMATIVE) EXAMPLE OF ROUNDING DIFFERENCES ........................................................................... 158

BIBLIOGRAPHY .......................................................................................................................................................... 162

iii
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oSIST prEN ISO 12855:2021
ISO/DIS 12855:2020(E)
Foreword

ISO (the International Organization for Standardization) is a worldwide federation of national standards

bodies (ISO member bodies). The work of preparing International Standards is normally carried out

through ISO technical committees. Each member body interested in a subject for which a technical

committee has been established has the right to be represented on that committee. International

organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. ISO

collaborates closely with the International Electrotechnical Commission (IEC) on all matters of

electrotechnical standardization.

The procedures used to develop this document and those intended for its further maintenance are

described in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the

different types of ISO documents should be noted. This document was drafted in accordance with the

editorial rules of the ISO/IEC Directives, Part 2 (see www.iso.org/directives).

Attention is drawn to the possibility that some of the elements of this document may be the subject of

patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of any

patent rights identified during the development of the document will be in the Introduction and/or on

the ISO list of patent declarations received (see www.iso.org/patents).

Any trade name used in this document is information given for the convenience of users and does not

constitute an endorsement.

For an explanation on the meaning of ISO specific terms and expressions related to conformity

assessment, as well as information about ISO's adherence to the WTO principles in the Technical Barriers

to Trade (TBT) see the following URL: Foreword - Supplementary information

The committee responsible for this document is ISO/TC 204, Intelligent transport systems.

This third edition cancels and replaces the second edition (ISO 12855:2015), which has been technically

revised. The following major changes have been made:

— adding new Application Data Units (ADUs) due to comments received from National Bodies;

— aligning the ASN.1 data definitions with the current versions of EN ISO 14906, and ISO 17575 (all

parts);

— removing all imported ASN.1 data types from ISO 17575 and creating corresponding definitions;

— splitting the ASN.1 module in two modules: one that contains 12855 specific definitions, and a

second one that contains data type definitions that are common to other standards in the EFC

domain.;
— move the common data types module into part 3 of ISO 17573;
— clarifying the semantics of parameters in ADUs;

— aligning the structure of all major clauses in a consistent manner to improve readability.

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oSIST prEN ISO 12855:2021
ISO/DIS 12855:2020(E)
Introduction

The widespread use of tolling requires provisions for users of vehicles that circulate through many

different toll domains. Users should be offered a single contract for driving a vehicle through various toll

domains. Where those vehicles require a form of on-board equipment (OBE) this should be interoperable

with the toll systems in the various toll domains. In Europe, for example, this need has been officially

recognized and legislation on interoperability has already been adopted (see Directive 2019/520 and

related Commission delegated regulation 2020/2003 and Commission implementing regulation

2020/204 in the Bibliography). There is both a commercial and economic justification in respect to the

OBE and the toll systems for standards enabling interoperability.

The system architecture defined in ISO 17573-1 is the basis for all standards that relate to tolling systems

in the toll domain. With respect to ISO 17573-1, this document

— adopts its definitions of terms and concepts and basic system functionalities and structure,

— uses its terminology, and
— specifies the interfaces therein identified.
ISO 17573-1 uses ISO/IEC 10746-3 for the description of the architecture.

Figure 1 shows the scope of the group of electronic fee collection (EFC) related standards based upon the

architecture standard.
Figure 1 — Scope of EFC related standards

A given transport service for a given vehicle is fully identified by one or several toll declarations made

available to the toll charger (TC). Toll declarations have to be made available according to the rules of the

toll regime of the toll domain.

The amount due for a given transport service used by a vehicle liable to toll is finalized by the TC with the

use of toll declarations (as described above) and calculations are made according to the rules of the toll

regime (formula, tariff tables, specific situations rules, traffic conditions, etc.). That means that the TC has

the authority to decide on the amount due, even if it decides to assign the toll service provider (TSP) the

task to calculate the amount due.
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oSIST prEN ISO 12855:2021
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The information above, associated with a given transport service, is named billing details; for a given

transport service, the billing details are referring to one or several toll declarations.

Depending on the toll regime, billing details are elaborated with information collected by the TC and/or

the relevant TSP; they are finalized by the TC.

The TC elaborates and makes the payment claims (or toll payment claims) available to each TSP,

according to the bilateral agreements it has with each TSP, referring to billing details. These payment

claims include an amount due taking into account any specific commercial conditions applicable to a

vehicle, a fleet of vehicles or a given TSP.

This document defines a set of interactions in support of technical interoperability between back-office

systems of TCs and TSPs. The EFC-service and the EFC System model on which this document is based is

defined in ISO 17573-1.

This document does not provide a full solution for interoperability, and it does not define other parts of

the EFC system, other services, other technologies and non-technical elements of interoperability.

The development of a common European Electronic Toll Service (EETS), as a part of the already cited

European EFC Directive and related Regulation and Implementing acts, also calls for the definition of an

interoperable EFC service. It should be noted CEN/TS 16986 specifies interoperable application profiles

(IAP) applicable based on this document. These profiles define a specific coherent set of transactions,

triggers, conditions, data elements, transfer mechanisms and supporting functions for an interoperable

exchange of data between the central equipment of TCs and TSPs. CEN/TS 16986 is consistent with and

is intended to provide support for the technical specification of the EETS.

This document identifies and specifies the set of Application Protocol Data Units exchanged between two

actors in the roles of toll service provider and toll charger as defined in ISO 17573-1. To specify these

interfaces, this document uses the enterprise description of the toll environment, and the interactions

defined between the named classes of roles, as defined in ISO 17573-1. This allows for a complete

specification of the data that is transferred between those identified entities. In addition, a number of

computational interfaces are identified and interactions in terms of sequences of Application Protocol

Data Units are defined.
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oSIST prEN ISO 12855:2021
INTERNATIONAL STANDARD ISO/DIS 12855:2020(E)
Electronic fee collection — Information exchange between service
provision and toll charging
1 Scope
This document specifies

— the interfaces between electronic fee collection (EFC) systems for vehicle related transport

services, e.g. road user charging, parking and access control; it does not cover interfaces for EFC

systems for public transport; an EFC system can include any EFC system, e.g. including systems

that automatically read licence plate numbers of vehicles passing a toll point,

— an exchange of information between the central equipment of the two roles of service provision

and toll charging, e.g.
— charging related data (toll declarations, billing details),
— administrative data, and
— confirmation data,
— transfer mechanisms and supporting functions,
— information objects, data syntax and semantics,
— examples of data interchanges (see Annex B and Annex C), and
— an example of toll rounding (see Annex D).

This document is applicable for any toll service and any technology used for charging.

It is defined as a toolbox standard of transactions and Application Protocol Data Units (APDUs), which

can be used for the assigned purpose. The detailed definitions of mandatory and optional elements in a

real implementation are defined elsewhere. It does not define all communication sequences,

communication stacks and timings.

The data types and associated coding related to the data elements described in clause 6 are defined in

Annex A, using the abstract syntax notation one (ASN.1) according to ISO/IEC 8824-1.

This document is not applicable, among others, to

— any communication between toll charger (TC) or toll service provider (TSP) with any other

involved party,

— any communication between elements of the TC and the TSP that is not part of the back office

communication,

— processes regarding payments and exchanges of fiscal, commercial or legal accounting

documents, and

— definitions of service communication channels, protocols and service primitives to transfer the

APDUs.
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